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प्रश्न
Explain the progress of ecological succession in newly formed volcanic island.
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उत्तर
- Primary succession starts at places where no living organisms were present before like a newly formed volcanic island.
- Before a biotic community of diverse organisms can be established, there must be soil. Depending mostly on climate, it takes natural processes, several hundred to several thousand years to produce fertile soil on bare rock.
- The species which invade a bare area and initiate the succession are called pioneer species. Crustose lichen grows on the rocks which secretes acid to dissolve rock. This helps in weathering of rocks and formation of soil.
- These conditions become favourable for the next community i.e. bryophytes and mosses take hold of the small amount of soil.
संबंधित प्रश्न
Growth of new grasses and shrubs on a patch of forest burnt down by forest fire, is a an example of ______.
What is the term used to denote the gradual and predictable change in the species composition of a given area?
In which area is xerarch succession observed?
What is the entire sequence of communities that successively change in a given area called?
What are the different developmental stages of ecological succession called?
Which of the following is TRUE for ecological succession?
Where does secondary succession generally occur?
______ is the gradual and predictable change in the species composition of a given area.
Identify the stage that follows xerarch succession.
Climax community is in a state of ______.
